Home
Class 11
CHEMISTRY
A hydrogen atom in the ground state is e...

A hydrogen atom in the ground state is excited by monochromatic radiation of wavelength `lamda Å.` The resulting spectrum consists of maximum 15 different lines. What is the wavelength `lamda?`
`(R_(H)=109737 cm^(-1))`

A

`937.3 Å`

B

`1025 Å`

C

`1236 Å`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
1
Total number of spectral lines given by
`(1)/(2)[n-1]xxn=15," ":.n=6`
Thus, electron is excited upto `6^(th)` energy level from ground state. Therefore,
`(1)/(lambda)=R_(H)[(1)/(1^(2))-(1)/(n^(2))]=109737xx(35)/(36),`
`lambda=9.373xx10^(-5)cm=937.3Å`
Promotional Banner

Topper's Solved these Questions

  • ATOMIC STRUCTURE

    RESONANCE ENGLISH|Exercise Inorganic chemistry (Chemistry Bonding)|38 Videos

  • ATOMIC STRUCTURE

    RESONANCE ENGLISH|Exercise ORGANIC CHEMISTRY(Fundamental Concept )|16 Videos

  • AROMATIC COMPOUNDS

    RESONANCE ENGLISH|Exercise PART-II : JEE (MAIN)|1 Videos

  • CHEMICAL BONDING

    RESONANCE ENGLISH|Exercise ORGANIC CHEMISTRY(Fundamental Concept )|6 Videos

Similar Questions

Explore conceptually related problems

The hydrogen atom in the ground state is excited by mass of monochromatic radiations of wavelength lambda Å . The resulting spectrum consists of maximum 15 different lines . What is the value of lambda ? ( R_H = 109737 cm^(-1)) .

The hydrogen atom in the ground state is excited by means of monochromatic radiation of wavelength xA_(0) The resulting spectrum consists of 15 different lines. Calculate the value of x.

Hydrogen atom in ground state is excited by a monochromatic radiation of lambda = 975 Å . Number of spectral lines in the resulting spectrum emitted will be

The hydrogen atom in ground state is excited by a monochromatic radiation of wavelength lambda = 1025 A . The possible number of emmision spectral lines in the spectrum will be (hc = 12400 eV A)

Hydrogen atom in its ground state is excited by means of monochromatic radiation of wavelength 975A^(@) . How many different lines are possible in the resulting spectrum? Calculate the longest wavelength amongst them.

Hydrogen atom is its ground state is excited by means of monochromatic radiation of wavelength 1023 Å . How many different lines are possible in the resulting spectrum? Calculate the longes wavelength among them. You may assume the ionization energy of hydrogen atom as 13.6 eV.

Hydrogen atom in its ground state is excited by means of monochromatic radiation of wavelength 970.6 Å . How many lines are possible in the resulting emission spectrum ? Calculate the longest wavelength amongst them. You may assume that the ionisation energy for hydrogen atom is 13.6 eV. Given Planck's constant = 6.6 xx 10^(-34)Js, " " c = 3 xx 10(8) ms^(-1)

Hydrogen atom is ground state is excited by mean of monochromatic radiation of wavelength 975Å How many different lines are possible in the resulting spectrum ? Calculate the longest wavelength for hydrogen atom as ionization energy is 13.6 eV

The hydrogen atom in its ground state is excited by means of monochromatic radiation. Its resulting spectrum has six different lines. These radiations are incident on a metal plate. It is observed that only two of them are responsible for photoelectric effect. if the ratio of maximum kinetic energy of photoelectrons is the two cases is 5 then find the work function of the metal.

Ionization potential of hydrogen atom is 13.6 V . Hydrogen atoms in the ground state are excited by monochromatic radiation of photon energy 12.1 eV . The spectral lines emitted by hydrogen atoms according to Bohr's theory will be

RESONANCE ENGLISH-ATOMIC STRUCTURE-ORGANIC CHEMISTRY(Fundamental Concept )
  1. A hydrogen atom in the ground state is excited by monochromatic radiat...

    Text Solution

    |

  2. The magnetic moment of .25Mn in ionic state is sqrt(15)B.M, then Mn is...

    Text Solution

    |

  3. The spin only magnetic of Cr^(3+) in aqueous solution would be :

    Text Solution

    |

  4. psi^(2)=0 represent

    Text Solution

    |

  5. Observe the following statements regarding isotones : a. .^(39)K and...

    Text Solution

    |

  6. If n(1) and n(2) are the boundary value principal quantum numbers of a...

    Text Solution

    |

  7. What is the potential energy of an electron present in N- shell of th...

    Text Solution

    |

  8. In which of the following transition, the wavelength will be minimum ...

    Text Solution

    |

  9. The ratio of kinetic energy and potential energy of an electron in a B...

    Text Solution

    |

  10. Total Number of unpaired electrons in d- orbitals of an atom element o...

    Text Solution

    |

  11. Photons of minimum energy 496k,J. mol^(-1) are needed to an atoms. Cal...

    Text Solution

    |

  12. According to Bohr's model, if the kinetic energy of an electron in 2^(...

    Text Solution

    |

  13. Last line of Lyman series for H- atom has wavelength lambda(1) A,2^(nd...

    Text Solution

    |

  14. Which electronic level would allow the hydrogen atom to absorb a photo...

    Text Solution

    |

  15. Number of nomal planes ( planes of zero electron densit ) in the d(xy)...

    Text Solution

    |

  16. The uncertainty in position and velocity of the particle are 0.2mm and...

    Text Solution

    |

  17. A particle initially at rest having charge q coulomb, & mass m kg i...

    Text Solution

    |